Oil-burner.



PATENTED MAY 22, 1906 I HOLLENBAOH.

I. HOLLENBACH, G. A. HAAGB & J. G.

OIL BURNER.

APPLICATION FILED 001?. 20, 1902.

U-NTTED STATES PATENT OFFICE.

isAAc HOLLENBAOH, GUSTAVUS A. HAAGE, AND JOHN G. HOLLENBACH, or READING, PENNSYLVANIA.

GIL-BURNER.

Specification of Letters Patent.

?atented May 22, 1906.

To all whom it may concern Be it known that we, IsAAo HoLLENB on, GUsTAvUs A. HAAGE, and JOHN G. HoLLnN- BAGH, citizens of the United States of America, residing at Reading, county of Berks, and State of Pennsylvania, have invented certain new and useful Improvements in Oil Burners; and we do hereby declare the following to be a full, clear, and exact description of the invention,-such as' will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to an improvement in oil-burners.

The object of our invention is to provide an efficient oil-burner which may 'be' employed for heating purposes and which is especially advantageous for use in connection with domestic heaters, stoves, ranges, and the like for all domestic heating and cooking purposes.

With this-general object in view our invention consists in the features, details of construction, and combination of parts, which will first be described in connection with the accompanying drawings and then more particularly pointed out in the claims.

In the drawings, Figure 1 is a perspective View showing our invention applied to, the fire-box or grate portion of an ordinary domestic range; Fig. 2, a detail perspective view of the heating-block alone; Fig. 3, a longitudinal section, and Fig. 4 a transverse section, of the said block.

Referring to the drawings, A is a block of any suitable porous refractory solid material, preferably of clay and most advantageously of burned firecla-y, said block having an external configuration, such as to adapt it to fit into the fire-box of the heat ng apparatus with which it is to be used. In the present instance the said block is shown as a parallelepipedon, as best illustrated in Fig. 2., this form of block being especially suitable for use in connection with an ordinary domestic range, as shown in Fig. 1.

The block is provided with an interior recess or chamber, (indicated at (1, Figs. 3 and 4,) this chamber being inclosed by the block and communicating with an opening a, Figs. 3 and 4, into which is inserted a bushing B for the purpose of permitting the attachment of a pipe to the block, as more fully explained hereinafter. The block A is also provided with a series of air-holes a for a purpose hereinafter explained. The block is placed in position in the heating apparatus-for example, as shown in Fig. l-the bushing B extending downward and being connected to an oil-supply pipe 0, leading from the oil-tank D, located at a suitable height above the block. The pipe C is preferably provided with a valve E, as shown in Fig. 1.

The operation of using our improved burner is as follows:

The tank being filled with oil, the valve Eis opened, thus allowing the oil to flow into the chamber or recess a and fill the same, from which chamber the oil flows through the pores of the block A until said block is entirely saturated with the'oil. Thereupon the oil is suitably ignited as, for example, by placing lighted paper in the ashpit beneath the block. On the initial 'igni by the downward flow of the oil from the chamber A until the block becomes sufliciently heated, whereupon the chamber A acts as a retort within which the oil is vaporized or gasified by the heat, the gas then passing off through the pores of the block to the outer surface, where it burns, and thus maintains the heat of the block, so that after the burner is once started the vaporizing of the oil in the chamber proceeds continuously. The supply of oil to the said chamber or recess may be suitably regulated, and thereby the heat of the burner regulated by means of the valve E. The fire is extinguished by entirely cutting off the supply of oil to the cham ber by closing said valve E.

The block A may be formed with the chamber a in any suitable way-as, for example, by molding the clay in two halves, each containing a number of recesses, these two halves then being placed together while still green and suitably pressed, so that the said halves will adhere, whereupon the air-holes a may be formed and the block burned in the usual manner, or the air-holes may be formed in the halves of the block when molding the same.

The bushing B is preferably threaded into the opening a, which may be done either by molding threads in the block in its green condition or by tapping said opening after the block has been burned, coarse threads being preferable.

One of the important advantages of our tion of the Oll the supply of fuel is maintained thus insure a perfect combustion.

burner is that if the oil being used contains any ingredients which will form a sediment or deposit in the block this sediment or deposit is retained in the chamber or retort and may be removed therefrom by disconnecting the pipe 0. By this means the pores of the block are not stopped up with the deposit or sediment, and as a consequence the life of the block is practically unlimited, the cleaning of the chamber being only needed at very infrequent periods. Moreover, owing to the fact that the pipe is connected to the bottom of the block, and thus is at the coolest part of the same, it is to a certain extent protected from the heat and is not rapidly destroyed thereby. This advantage holds also with re gard to the bushing B, so that the life of these parts is also greatly enhanced.

The air-holes a serve to supply air from the bottom of the grate to the flame, and

Furthermore, the walls of these air-holes also serve as burning-surfaces, and thus increase the efficiency of the block. The said block may be provided with such a number of air-holes as may be requisite to supply the necessary amount of air to the flame, this number depending upon the sizes of the block and the general conditions under which it is employed.

It will be seen that by our construction we provide a burner which is exceedingly simple and durable, and our experience has shown on the market, the pores of the block supthat it is also very efficient and is as economical in the use of oil as the best burners now plying the oil vapor or gas to the flame in a much more finely distributed condition than any atomizing-burner now known, thus insuring the proper mixing of the gas with the surrounding air and producing a perfect combustion of the gas. Our inventlon ossesses the further advantage of great sa ety, be cause there can be no communication of the flame direct to the oil-pipe. Furthermore, if the gas-pressure in the chamber should rise to any extent the oil will be forced back in the pipe, and thereby the supply of oil reduced until such. time as the pressure in the chamber is lowered by the escape of the gas through the pores of the block to the surfaces of ignition, whereupon the oil will again enter the chamber to maintain the supply. This automatic action is of importance in a burner of this kind, since by a proper proportioning of the chamber the supply of oil is practically automatic.

material porous throughout, said block having an internal retort-chamber isolated by said porous material from the burning-sun faces of the'block', and having a plurality of air-holes whose walls are formed by the porous material of the block, in combination with means for supplying oil to said retortchamber.

2. In an oil-burner, a block of refractory material porous throughout, said block having an internal retort-chamber isolated by said porous material from the burning-surfaces of the block, and having a plurality of vertically-arranged air-holes whose walls are formed by the porous material of the block,

in combination with means for supplying oil to said retort-chamber.

3. In an oil-burner, a block of solid refractory material porous throughout, said block having an internal cavity forming a retortchamber, the walls of said cavity being formed of the said porous material, which isolates the cavity from the burning-surfaces of the block, said block having also a plurality of air-holes passing entirely through it, and an oil-inlet extending from the retort-chamber to the outer surface of the block, in com-- bination with a bushing secured in said oilinlet, a pipe connected to said bushing and a tank arranged to supply oil to the pipe.

4. In an oil-burner, a block of solid refractory material, porous throughout, said block having an internal unlined cavity forming a retort-chamber, and an oil-inlet extending from the said retort-chamber to the outer surface of the block, the walls of the retortchamber being iinperforate with the exception of the oil-inlet, said block also having a plurality of air-holes passing through the block. 7

In testimony whereof we afiix ourisignatures in presence of two witnesses.

ISAAC HOLLENBAOH] GUSTAVUS A. HAAGE. JOHN G. HOLLENBACH. 

